Below are the games I completed multiple times. Note that some of them were completed not because they were fun, but because I was either bored or wanted to test my will.
Arcanum
Area 51
BloodRayne
BloodRayne 2
Call of Duty
Chronicles of Riddick: Escape from Butcher Bay
Demon Stone
Devil May Cry 3: Dante's Awekening
Diablo 2+Lord of Destruction Expansion
Enclave
Fable: Lost Chapters
Fallout
Fallout 2
Fallout: Tactics Brotherhood of Steel
Indiana Jones and the Emperor's Tomb
Indigo Prophecy
Knights of the Temple: Infernal Crusade
Lord of the Rings: Return of the King
Legacy of Kain: Soul Reaver 2
Legacy of Kain: Blood Omen 2
Legacy of Kain: Defiance
Max Payne 2: The Fall of Max Payne
Drakan
Neverwinter Nights
Neverwinter Nights: Shadows of Undrentide Expansion
Neverwinter Nights: Hordes of the Underdark Expansion
Neverwinter Nights 2
No One Lives Forever 2: A Spy in H. A. R. M. 's Way
Onimusha 3: Demon Siege
Prince of Persia: Sands of Time
Prince of Persia: Warrior Within
Prince of Persia: Two Thrones
Star Wars: Knights of the Old Republic
Star Wars: Knights of the Old Republic 2: Sith Lords
Tomb Raider 3: Adventures of Lara Croft
Tomb Raider 4: The Last Revelation
Tomb Raider 5: Chronicles
Tomb Raider 6: Angel of Darkness
Tomb Raider 7: Legend
Unreal 2: The Awakening
Vampire: The Masquarade: Bloodlines

Laras Backpack

08-02-07, 13:42

TRs 1 to 7
Primal
Beyond Good and Evil
RE2 (have only done 4 and CVX once so far)
Crash Bandicoot Twin Sanity
The entire PoP trilogy
Sheep Dog and Wolf
Carmen Sandiego and the Case of the Stolen Drums (don't laugh. my mum bought it for me. :D )
Crash Team Racing
Crash Nitro Cart
Destrega
....
To be honest- practically every game I own I've enjoyed enough to complete at least twice. :)

Geck-o-Lizard

08-02-07, 13:42

TR3 and TR Chronicles are the only games I've fully completed more than once. All my other games, after I've played them through the first time, I just go back to the levels I liked the best; or I try and re-play them through again but get bored halfway through. :p

kewlkyle64

08-02-07, 14:41

Call of Duty 2
Bully
All the Tomb Raiders

Argh, I can't think of much off the top of my head.

Angelx14

08-02-07, 14:52

None. I love most of the games I have played, but I'm too lazy to play them again ><

Lara Croft!

08-02-07, 15:08

Crash Bandicoot 3

Gex 3-d

Tekken 3

TRII

TRIII

TR Chronicles

TR AOD

TR Legend

dream raider

08-02-07, 18:43

Tomb Raider Legend.

Jacob x5

08-02-07, 19:40

Tomb Raider 2, Tomb Raider: Last Revelation and the original Half-Life spring to mind, but the one game that I have played through the most times is the incredibly underrated and incredibly brilliant Grim Fandango. ;) :tmb: